100 120 140 160 180 160 140 120 100 80 60 40
100 120 140
Arrows tty with the wind.
Length denotes measure of steadiness.
The darker the arrows the §reM»r the ION*
§
8
i
100 120 140 160 180 160 140 120 100
20 40 60 80 100 120 140
FIG. 63.—Ocean winds, January and February. (Koppen.)